Improvement in sash-holders



ATENT THOMAS WALKER, OF PLEASANTVILLE, MARYLAND.

IMPROVEMENT |N SASH-HOLDERS.

Specification forming part of Letters Patent No. 162,979, dated May 4,1875; application filed March l8, 1875.

To all whom it may concern:

Be it known that I, THOMAS WALKER, of Pleasantville, in the county ofHarford and State of Maryland, have invented a new and ImprovedSash-Fastening; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawing, forming a part of this specification, in which-Figure l is a side elevation of a window, with portion of the framebroken away to show fastening devices; Fig. 2, a side view of thedevice, part-1y in section; Fig. 3, modification of Fig. 2 Fig. 4, viewof key-shaft as held by its plate.

The object of my invention is to provide an improved fastening forwindow-sashes of all kinds, for the purpose of maintaining the same inany desired position. It consists in a bolt which is screw-threaded atone end, and provided with an adjustable friction-pad, and pivoted atthe other end to a crank-piece. Said bolt carries a washer, betweenwhich and the friction-pad, and surrounding said bolt, is a spiralspring, which forces the pad against the edge of the sash, to hold it inany required position. The crank is provided with a flatsided hole,through which passes the shaft of a knob or key, which is made tocorrespond in shape to the hole, so that when it is turned the bolt andits friction-pad is withdrawn from the window-sash, and the latter isfree to move.

In the drawing, A A represent the two sashes of a window, and B is theframe. Said frame is provided with a recess, opening against the edge ofthe sash, and has a hole upon the side, through which the shaft of thekey or knob passes to engage with the devices in the said recess. 0 is abolt, which is screw-threaded at one end to receive an adjustablefriction -pad, D, consisting of a nut, 00, and a rubber cushion, I).Said bolt is pivoted at its other end to a crank-piece, E, and carries awasher, F, which bears against a shoulder in the recess in the frame. Gis a spiral spring, which encompasses the bolt O, and presses thefriction-padD against the edge of the sash, so as to hold it at anydesired height, and also to hold it tightly when down, to keep the samefrom rattling from the wind. The crank-piece E is perforated with ahole, a, one side of which is flattened, so as to cause the shaft H,which is of a cor responding shape, to retract the bolt when the key Iis turned.

I do not confine myself, however, to a hole with a flattened side, and acorrespondinglyshaped shaft, but may place upon the shaft a spline; or Imay make it square, octagonal, or use any wellknown method of attachingthe shaft to the crank-piece, so as to cause the latter to move radiallywhen the shaft is revolved, and still allow the shaft to be detached, ifnecessary.

The end of the boltG is made screw-thread ed, and the friction-padadjustable thereon, so as to allow the latter to be screwed out, so asto become more prominent when the sash shrinks, and becomes loose; or itmay be screwed up to compress the spring to make the fastening moresecure, as may be neces sary for car-windows, where much jolting isliable to bring the sash down.

The shaft II is grooved at d, and the framework provided with a slottedplate, J, which, when the shaft is in the frame, rests with its edges ingroove d, and holds the shaft securely in place.

To adapt my device to sashes in brick or stone buildings where the frameis narrow, I alter the position of the crank-piece, as shown in Fig. 3,by putting it next to the friction-pad; and, instead of pivoting it, Imake a slot, f, in the bolt, and allow the end g of the crank-piece towork in the same, the spring and end of the bolt being disposed within arecess in the brick or stone work.

By means of the above-described arrangement, both the window-sashes maybe maintained at any desired height without disfiguring the edges of thesame with notches.

The devices also hold the window habitually rigid, so as topreventrattling, but are, notwithstanding this fact, practical, effective, andeasy in manipulation.

Having thus described my invention, what I claim as new is-- 1. Thecombination of the bolt 0, the friccushion b, substantially as and forthe purtion-pad D, consisting of a nut, a, and rubpose described. hercushion b, the washer F, spiral spring G, The above specification of myinvention crank-piece E, and detachable shaft H, subsigned by me this12th day of March, 1875. stantially as and for the purpose described.THOMAS WALKER.

- 2. The bolt 0, having a screw-threaded end Witnesses: in combinationwith the adjustable friction- SoLoN G. KEMON, pad D consisting of a nut,a, and rubber GHAs. A. PETTIT.

